1. Division of Geriatric Dentistry, Meikai University School of Dentistry, Saitama 350-0283, Japan
2. Meikai University Research Institute of Odontology (M-RIO), 1-1 Keyakidai, Saitama 350-0283, Japan
3. Division of Biochemistry, Meikai University School of Dentistry, Saitama 350-0283, Japan
4. Department of Medical Molecular Informatics, Meiji Pharmaceutical University, Tokyo 204-858, Japan
5. Department of Pharmaceutical Sciences, Faculty of Pharmacy and Pharmaceutical Sciences, Josai University, Saitama 350-0295, Japan
6. Department of Biochemistry and Molecular Biology, Faculty of Pharmaceutical Sciences, Tokyo University of Science, Chiba 278-8510, Japan